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        .d1 {
            height: 80px;
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            border-top: 4px solid rgb(0, 67, 147);
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        .d1 a {
            display: inline-block;
            width: 120px;
            height: 80px;
            color: #424242;
            font-size: 18px;
            line-height: 80px;
            text-decoration: none;
            text-align: center;
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        .d1 a:hover {
            background-color: #edeef0;
            color: blue;
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    <div class="d1">
        <a href="https://www.bilibili.com/video/BV1uT4y1P7CX/?spm_id_from=333.337.search-card.all.click">指路导航</a>
        <a href="https://www.bilibili.com/video/BV1C7hwzqEVN/?spm_id_from=333.337.search-card.all.click">指路导航</a>
        <a href="https://www.bilibili.com/video/BV1jh3WzzEzp/?spm_id_from=333.337.search-card.all.click">指路导航</a>
        <a href="https://www.bilibili.com/video/BV1J4411v7g6/?spm_id_from=333.337.search-card.all.click">指路导航</a>
    </div>

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